A 32-year-old man is brought to the emergency department following a high-speed motor vehicle collision. He was the unrestrained driver. On arrival, his blood pressure is 88/56 mmHg, heart rate 128 bpm, respiratory rate 24/min, and Glasgow Coma Scale is 14. Examination reveals a distended abdomen with severe tenderness and bruising over the left flank. Focused Assessment with Sonography for Trauma (FAST) shows free fluid in the peritoneal cavity. Hemoglobin is 9.2 g/dL (baseline unknown). What is the most appropriate immediate management?
A. Immediate transfer to the operating room for exploratory laparotomy after 2 units of O-negative blood
B. Permissive hypotension with limited fluid resuscitation and rapid transfer to the operating room
C. Diagnostic peritoneal lavage to confirm intra-abdominal bleeding before any intervention
D. Aggressive fluid resuscitation with 2 L normal saline followed by CT scan of the abdomen
Explanation
Clinical Context
This patient presents with hemorrhagic shock Class III (systolic BP 70–90 mmHg, HR >120 bpm, altered mental status) secondary to blunt abdominal trauma with evidence of intra-abdominal bleeding (FAST-positive, distended abdomen, flank bruising).
Permissive Hypotension Strategy
Key Point
In penetrating or blunt trauma with ongoing hemorrhage and hypotension, the current standard is permissive hypotension (target systolic BP 90 mmHg) with restricted fluid resuscitation until definitive hemorrhage control is achieved in the operating room.
High-YieldNEET PG
The paradigm shift from "aggressive fluid resuscitation" to "permissive hypotension" is based on evidence that excessive early fluids:
Dilute clotting factors and platelets (coagulopathy)
Increase bleeding from disrupted vessels (loss of tamponade effect)
Worsen outcomes in hemorrhagic shock
Mnemonic
MARCH (Massive transfusion protocol priorities):
Massive bleeding control (tourniquet, direct pressure)
Altered mental status (GCS 14) = inadequate cerebral perfusion
4.
Blunt abdominal trauma with free fluid = likely solid organ injury (spleen, liver) or mesenteric bleeding
Clinical Pearl
In hemorrhagic shock from blunt trauma, do NOT delay operative intervention for imaging or aggressive fluid boluses. Permissive hypotension buys time for rapid transfer while minimizing dilutional coagulopathy.
Resuscitation Approach
Initial fluid: 500 mL bolus of crystalloid or blood product (not 2 L)
Target BP: Systolic ≥90 mmHg (not normotensive)
Definitive control: Operating room for hemorrhage source identification and hemostasis
Concurrent: Type and cross-match, prepare for massive transfusion protocol
ATLS 10th Edition, Chapter 3: Shock
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